The DOI matches its Crossref record; 10 of the 10 references it cites were found in a registry or an index.
Effects of Mineral Additives on Biochar Formation: Carbon Retention, Stability, and Properties
Abstract
Biochar is being recognized as a promising tool for long-term carbon sequestration, and biochar with high carbon retention and strong stability is supposed to be explored for that purpose. In this study, three minerals, including kaolin, calcite (CaCO3), and calcium dihydrogen phosphate [Ca(H2PO4)2], were added to rice straw feedstock at the ratio of 20% (w/w) for biochar formation through pyrolysis treatment, aiming to improve carbon retention and stabilization in biochar. Kaolin and CaCO3 had little effect on the carbon retention, whereas Ca(H2PO4)2 increased the carbon retention by up to 29% compared to untreated biochar. Although the carbon loss from the kaolin-modified biochar with hydrogen peroxide oxidation was enhanced, CaCO3 and Ca(H2PO4)2 modification reduced the carbon loss by 18.6 and 58.5%, respectively. Moreover, all three minerals reduced carbon loss of biochar with potassium dichromate oxidation from 0.3 to 38.8%. The microbial mineralization as CO2 emission in all three modified biochars was reduced by 22.2-88.7% under aerobic incubation and 5-61% under anaerobic incubation. Enhanced carbon retention and stability of biochar with mineral treatment might be caused by the enhanced formation of aromatic C, which was evidenced by cross-polarization magic angle spinning (13)C nuclear magnetic resonance spectra and Fourier transform infrared spectroscopy analysis. Our results indicated that the three minerals, especially Ca(H2PO4)2, were effective in increasing carbon retention and strengthening biochar stabilization, which provided a novel idea that people could explore and produce the designated biochar with high carbon sequestration capacity and stability.
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Cites
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Biochar effects on soil biota – A review
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Contribution to characterisation of biochar to estimate the labile fraction of carbon
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Predicting C aromaticity of biochars based on their elemental composition
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Cited by
Rajapaksha, A. U., Chen, S. S., Tsang, D. C. W., Zhang, M., Vithanage, M., Mandal, S., Gao, B., Bolan, N. S., & Ok, Y. S. (2016) · Chemosphere · doi:10.1016/j.chemosphere.2016.01.043 · Cited by 1,322
Zhu, X., Chen, B., Zhu, L., & Xing, B. (2017) · Environmental Pollution · doi:10.1016/j.envpol.2017.04.032 · Cited by 1,021
Xiao, X., Chen, B., Chen, Z., Zhu, L., & Schnoor, J. L. (2018) · Environmental Science & Technology · doi:10.1021/acs.est.7b06487 · Cited by 914
Fang, G., Liu, C., Gao, J., Dionysiou, D. D., & Zhou, D. (2015) · Environmental Science & Technology · doi:10.1021/es5061512 · Cited by 887
An overview of the effect of pyrolysis process parameters on biochar stability
Leng, L., & Huang, H. (2018) · Bioresource Technology · doi:10.1016/j.biortech.2018.09.030 · Cited by 503
Metadata
- Authors
- Li, F., Cao, X., Zhao, L., Wang, J., & Ding, Z.
- Venue
- Environmental Science & Technology
- Publisher
- American Chemical Society (ACS)
- Published
- 2014-09-24
- Volume
- 48
- Issue
- 19
- Pages
- 11211-11217
- ISSN
- 0013-936X (ISSN-L)
- 1520-5851
- OpenAlex
- W2325767237
- Cited by
- 311
- References
- 10
- FWCI
- 6.46
- Type
- journal article
- Language
- en
- Open access
- closed
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